I uploaded my FLAC files like normal, then realized I needed to edit the names of the files. After derivation, I changed the prefix of every file from "jso" to "jsf" for Jonathan Scales Fourchestra. It seemed to be fine, but now the player is showing duplicates for most of the tracks. The duplicates are titled "tmp". I appreciate any help in resolving the duplicates. Thanks!
It is finishing a re-derive right now and it now looks okay. I deleted all the mp3's and ogg files and recreated them from the FLAC's. In general, if you are renaming files, you only need to rename the FLAC files and the system will clean up all the derivatives. I'm not sure if you tried renaming the mp3's too? Anyway, it should be fixed now.